How come they are so misserable?

This is all just a part of growing up. We are all our own individual with our own thoughts and opinions so therefore we don't always get along with our siblings. This is just sisterly love, it will be better one day :)

When there are more than one sibling in the family you will have a night and dayer personalities and as the previous poster added it is part of life. Sometimes its part of growing and people grow out if but then on the other hand some people live their whole lives in this manner. Hope you and your sister can get along better. Welcome - Welcome to mylot!

I am an only child but I have two girls. I think they get on each others nerves all of the time. They are 5 years apart. This is a part of life, a part of growing up. Either way you guys still love each other right.